Load Specifications
Load data in caliber .338 Marlin Express with .338 | 200gr | Federal Fusion bullet and 47 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Lovex D073.6, Shooters World Match Rifle and Alliant AR-Comp.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 90% | 41,394 psi | 89% | 2346 fps | 99.9% |
| Accurate 2460 | <<locked>> | 86% | 39,711 psi | 86% | 2343 fps | 98% |
| Accurate 2495 | <<locked>> | 98% | 41,408 psi | 89% | 2415 fps | 100% |
| Accurate 2520 | <<locked>> | 90% | 39,581 psi | 85% | 2379 fps | 97.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 41,133 psi | 89% | 2434 fps | 99% |
| Accurate LT-30 | <<locked>> | 82% | 41,742 psi | 90% | 2274 fps | 99.3% |
| ADI AR 2219 | <<locked>> | 84% | 41,814 psi | 90% | 2395 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 90% | 40,553 psi | 87% | 2352 fps | 95.9% |
| Alliant AR-Comp | <<locked>> | 92% | 40,799 psi | 88% | 2415 fps | 100% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 41,713 psi | 90% | 2428 fps | 96% |
| Alliant Reloder-10x | <<locked>> | 84% | 39,682 psi | 86% | 2326 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 39,726 psi | 86% | 2264 fps | 99.2% |
| Bofors RP3ᴾ | <<locked>> | 100% | 40,814 psi | 88% | 2428 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 88% | 41,031 psi | 88% | 2316 fps | 96.7% |
| Hodgdon BL-C2 | <<locked>> | 92% | 40,205 psi | 87% | 2408 fps | 96.6% |
| Hodgdon H322 | <<locked>> | 86% | 40,930 psi | 88% | 2379 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 86% | 41,321 psi | 89% | 2392 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,808 psi | 71% | 1486 fps | 100% |
| IMR 3031 | <<locked>> | 94% | 41,191 psi | 89% | 2444 fps | 99.7% |
| IMR 4198 | <<locked>> | 84% | 41,292 psi | 89% | 2306 fps | 100% |
| IMR 8208 XBR | <<locked>> | 90% | 40,553 psi | 87% | 2352 fps | 95.9% |
| Lovex D073.5 | <<locked>> | 86% | 39,494 psi | 85% | 2339 fps | 96.7% |
| Lovex D073.6 | <<locked>> | 94% | 40,335 psi | 87% | 2405 fps | 97.8% |
| Lovex S062 | <<locked>> | 96% | 39,798 psi | 86% | 2359 fps | 95.9% |
| Norma 201 | <<locked>> | 92% | 39,610 psi | 85% | 2339 fps | 95.8% |
| Norma 202 | <<locked>> | 92% | 39,552 psi | 85% | 2362 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,808 psi | 71% | 1522 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 40,654 psi | 88% | 2356 fps | 97.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 40,379 psi | 87% | 2451 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 90% | 41,220 psi | 89% | 2352 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 94% | 39,842 psi | 86% | 2336 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 94% | 40,335 psi | 87% | 2405 fps | 97.8% |
| Shooters World Precision | <<locked>> | 96% | 39,798 psi | 86% | 2359 fps | 95.9% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 39,595 psi | 85% | 2352 fps | 98.1% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 40,379 psi | 87% | 2333 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 40,074 psi | 86% | 2283 fps | 98.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 41,162 psi | 89% | 2320 fps | 99.1% |
| Somchem S321 | <<locked>> | 88% | 40,712 psi | 88% | 2382 fps | 96.4% |
| Somchem S335 | <<locked>> | 92% | 41,191 psi | 89% | 2323 fps | 99% |
| Vihtavuori N130 | <<locked>> | 86% | 40,147 psi | 87% | 2283 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 39,610 psi | 85% | 2290 fps | 99.7% |
| Vihtavuori N135 | <<locked>> | 96% | 40,089 psi | 86% | 2379 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 94% | 39,682 psi | 86% | 2343 fps | 98.5% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,189 psi | 82% | 2326 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 90% | 40,727 psi | 88% | 2352 fps | 96% |
| Vihtavuori N540 | <<locked>> | 96% | 40,785 psi | 88% | 2379 fps | 98.3% |
| Winchester 748 | <<locked>> | 92% | 41,466 psi | 89% | 2428 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 30,327 psi | 65% | 2133 fps | 98.2% |
| Accurate 2460 | <<locked>> | 80% | 32,489 psi | 70% | 2201 fps | 96% |
| Accurate 2495 | <<locked>> | 80% | 22,887 psi | 49% | 2018 fps | 95.9% |
| Accurate 2520 | <<locked>> | 84% | 32,285 psi | 70% | 2238 fps | 95.5% |
| Accurate 4064 | <<locked>> | 88% | 28,094 psi | 61% | 2169 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 39,276 psi | 85% | 2231 fps | 99% |
| ADI AR 2219 | <<locked>> | 80% | 36,579 psi | 79% | 2300 fps | 98.4% |
| ADI Benchmark 8208 | <<locked>> | 88% | 38,174 psi | 82% | 2306 fps | 95.2% |
| Alliant AR-Comp | 35.6 gr | 80% | 27,804 psi | 60% | 2149 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 39,262 psi | 85% | 2382 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,143 psi | 76% | 2244 fps | 99.8% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,260 psi | 80% | 2221 fps | 98.8% |
| Bofors RP3 | <<locked>> | 98% | 38,218 psi | 82% | 2382 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 84% | 36,419 psi | 78% | 2228 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 88% | 35,375 psi | 76% | 2313 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 33,649 psi | 73% | 2238 fps | 97.7% |
| Hodgdon H335 | <<locked>> | 80% | 33,924 psi | 73% | 2251 fps | 96.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,236 psi | 52% | 1325 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 26,672 psi | 57% | 2123 fps | 95.9% |
| IMR 4198 | <<locked>> | 80% | 36,564 psi | 79% | 2224 fps | 100% |
| IMR 8208 XBR | <<locked>> | 88% | 38,174 psi | 82% | 2306 fps | 95.2% |
| Lovex D073.5 | <<locked>> | 82% | 34,432 psi | 74% | 2241 fps | 95.2% |
| Lovex D073.6 | 41.8 gr | 88% | 33,011 psi | 71% | 2264 fps | 95.8% |
| Lovex S062 | <<locked>> | 94% | 37,420 psi | 81% | 2316 fps | 95.2% |
| Norma 201 | <<locked>> | 90% | 37,246 psi | 80% | 2293 fps | 95.1% |
| Norma 202 | <<locked>> | 84% | 30,618 psi | 66% | 2178 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,366 psi | 53% | 1362 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,576 psi | 72% | 2215 fps | 95.4% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 37,811 psi | 81% | 2398 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 30,690 psi | 66% | 2136 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 92% | 37,478 psi | 81% | 2290 fps | 95.1% |
| Shooters World Match Rifle | 41.8 gr | 88% | 33,011 psi | 71% | 2264 fps | 95.8% |
| Shooters World Precision | <<locked>> | 94% | 37,420 psi | 81% | 2316 fps | 95.2% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,231 psi | 80% | 2306 fps | 97.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 35,462 psi | 76% | 2241 fps | 98.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 31,328 psi | 68% | 2110 fps | 95.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 26,977 psi | 58% | 2028 fps | 95.1% |
| Somchem S321 | <<locked>> | 86% | 38,058 psi | 82% | 2333 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 28,660 psi | 62% | 2070 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 33,518 psi | 72% | 2162 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 80% | 29,124 psi | 63% | 2080 fps | 97.7% |
| Vihtavuori N135 | <<locked>> | 80% | 24,337 psi | 52% | 2034 fps | 96.2% |
| Vihtavuori N140 | <<locked>> | 84% | 29,240 psi | 63% | 2126 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 98% | 35,897 psi | 77% | 2280 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 88% | 38,218 psi | 82% | 2306 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 88% | 31,662 psi | 68% | 2198 fps | 95.7% |
| Winchester 748 | <<locked>> | 88% | 36,477 psi | 79% | 2329 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 47 powders for .338 Marlin Express loaded with the .338 | 200gr | Federal Fusion. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,451 fps; across all powders the maximum-charge window runs from 1,486 fps to 2,451 fps. Accurate 4064 gives the best case fill at 100 %, and 47 of the 47 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (320 MPa), the top charges use 71–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.338" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. Accurate 4064, Alliant Reloder- TS 15.5, Bofors RP3 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Lovex D073.6, Shooters World Match Rifle, Alliant AR-Comp rank at the top here: for .338 Marlin Express with the .338 | 200gr | Federal Fusion they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.